Tag: natural resources- air, water and land
Questions Related to natural resources- air, water and land
Smog is a combination of :
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fire and water
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smoke and fog
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water and smoke
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air and water
Smog is a type of air pollutant, is a combination of smoke and fog. Classic smog results from large amounts of coal burning in an area and its caused by a mixture of smoke and sulphur dioxide.
Smog is often caused by :
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heavy traffic
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high temperatures
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calm winds
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all of the above
Smog is often caused by heavy traffic, high temperatures, sunshine and calm winds.
Which oxides cause acid rains?
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Sulphur dioxide
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Nitrogen oxide
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Carbon dioxide
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Both A and B
Air pollution from burning of fossil fuels is the major cause of acid rain. The main chemicals in air pollution that create acid rain are sulfur dioxide ($SO _2$) and nitrogen oxides. Acid rain usually forms high in the clouds where sulfur dioxide and nitrogen oxides react with water, oxygen, and oxidants. this mixture forms a mild solution of sulfuric acid and nitric acid. Sunlight increases the rate of most of these reactions. Rainwater, snow, fog, and other forms of precipitation containing those mild solutions of sulfuric and nitric acids fall to earth as acid rain.
Sulphur dioxide gas can cause acid rain.
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True
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False
The main chemicals in air pollution that create acid rain are $SO _2$ and $NO _x$.
Which of the following is/are damages caused by acid rain?
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It depletes the soil of nutrients, increases the acidity of the soil and reduces fertility.
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It destroys marine life due to change in pH of the environment.
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It causes material damage.
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All of the above
The damages caused by acid rain are:
- It depletes the soil of nutrients, increases the acidity of the soil and reduces fertility, as the ideal conditions for the growth of trees are lost.
- It destroys marine life due to change in pH of the environment, making it unfit for habitation by aquatic animals.
- It causes material damage such as corrosion of marbles.
Which of the following reactions is not correct for the formation of acid rain?
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$\displaystyle { N } _{ 2 }+{ O } _{ 2 }\rightarrow 2NO$
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$\displaystyle 2NO+{ O } _{ 2 }\rightarrow { 2NO } _{ 2 }$
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$\displaystyle { H } _{ 2 }O+2{ NO } _{ 2 }\rightarrow { HNO } _{ 2 }+{ HNO } _{ 3 }$
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$\displaystyle NO+{ O } _{ 2 }\rightarrow { NO } _{ 2 }$
$\displaystyle NO+{ O } _{ 2 }\rightarrow { NO } _{ 2 }$ is the incorrect equation as it is not balanced.
What is the pH of acid rain?
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5.8
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5.5
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4.2
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3.8
Suspended particulate matter like __________ emitted from industries causes yellowing of marble.
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dust particles
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acidic gases
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soot particles
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all of the above
Industries like Mathura Oil refinery near Agra emits certain suspended particulate matter like soot particles. This results in yellowing of marble of the monument.
Which of the following is correct about acid rain?
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Rain which is acidic in nature
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Rain which is basic in nature
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Rain which is neutral in nature
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All of the above
When oxides of sulphur and nitrogen which are emitted by the industries, react with the moisture present in the atmosphere, they form acids.
Which of the following statements is true about acid rain?
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Acid rain will erode marble statues
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Acid rain can change the pH of lakes and streams
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Acid rain can be formed from carbon dioxide
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Acid rain creates holes in the ozone layer
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All of the above
Acid rain is caused due to oxides of nitrogen and sulphur reacting with water, oxygen, carbon dioxide, and other chemicals present high in the atmosphere resulting into acidic pollutants.